Help me please!!

Hello ladies, I am 35 will be 36 in June. My husband and I have been trying to get pregnant for 8 months now I know it can take a healthy couple a year to get pregnant but I am really getting exhausted and stress from trying each month! I have tracked my ovulation with BBT charting and opk’s so i know we are timing intercourse with ovulation. But i think it’s stressing me out to track bbt because when I see dips I get nervous I tested 9dpo and today at 10dpo and both test was negative 😢 I am healthy my husband is healthy. I’ve been to a doctor and was diagnosed with unexplained infertility. This is this month bbt chart. We was only able to baby dance a couple of times because I was feeling sick like a cold. I took prenatals I take metformin extended release 1500 mg a day. I don’t know what else to do. What is some tips on TTC you can give me? I’ve even cut out all the caffeine drink nothing but water milk I eat. My TSH was a little high but my doctor said it’s really nothing to worry about.

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